22101120020 has 48 divisors (see below), whose sum is σ = 53051916288. Its totient is φ = 7576208640.

The previous prime is 22101120001. The next prime is 22101120031. The reversal of 22101120020 is 2002110122.

It is a happy number.

It is a super-2 number, since 2×22101120020² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22101119983 and 22101120010.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1137104 + ... + 1156376.

It is an arithmetic number, because the mean of its divisors is an integer number (1105248256).

Almost surely, 2^22101120020 is an apocalyptic number.

22101120020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22101120020 is an abundant number, since it is smaller than the sum of its proper divisors (30950796268).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22101120020 is a wasteful number, since it uses less digits than its factorization.

22101120020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27480 (or 27478 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 22101120020 its reverse (2002110122), we get a palindrome (24103230142).

The spelling of 22101120020 in words is "twenty-two billion, one hundred one million, one hundred twenty thousand, twenty".